Lotus core, also known as lotus heart, lotus seed core, lotus plumule, Nelumbo nucifera plumule, Nelumbinis Plumula, Plumula Nelumbinis Nuciferae, and so on, it is the green spire and radicle in the middle of the mature seeds of Nelumbo nucifera Gaertn, which is a plant in the family Nymphaeaceae.
It is always a good medicine. The doctor of traditional Chinese medicine thinks it has clear heat, solid essence, calm the nerves, the strong heart, hemostatic, acerbity fine effect.
In Chinese medicine, lotus core is herb with lots of health benefits，its tastes really bitter, and edible but not suitable for direct consumption because it is so bitter. But this unwelcome flavor would be slightly diluted if soaked with boiled water. So it is often used as a routine drinking tea for the main purpose of decreasing internal heat.
Lotus core tea is also effective against high blood pressure because of the tea's alkaloid content, according to the Institute of Traditional Medicine. The tea's calming properties also alleviate restlessness, heart palpitations and insomnia.
Lotus core is considered safe for almost all people since it is with no known drug interactions and adverse reactions.